Workout privacy: Sacrificing personal info to shed pounds

More and more of us are tracking our every move in an effort to remain healthy or get into better shape. It's easier to do, thanks to online health applications, like My Fitness Pal, and wearable fitness bracelets, like Fitbit, Nike Fuelband and Jawbone, just to name a few.

But there could be a downside to all this data. Many people don't read the privacy policies that allow companies to sell or share this information to third parties.